| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for evaluating the strength H<SB>1</SB>of a small high-frequency magnetic field of the order not saturating spin magnetization by comparing two kinds of magnetic resonance signals different in modulation method, as to a magnetic resonance device using AC phase detection. SOLUTION: According to this high-frequency magnetic field strength measuring method for a regular-method magnetic resonance device using AC phase detection, the strength of a high-frequency magnetic field is evaluated from a signal strength ratio between magnetic resonance signals measured by two different demodulation methods. COPYRIGHT: (C)2006,JPO&NCIPI
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